PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/09-02:27:50
G01     255.4          37.2                5.8 +/-    1.14       8.9 +/-    1.14  0.050 / 0.100
G03     316.3          38.2                3.5 +/-    0.96       5.3 +/-    0.96  0.050 / 0.090
G11     239.0          14.9                5.6 +/-    2.16      13.9 +/-    2.16  0.060 / 0.090
G14     57.5           42.0                2.5 +/-    0.65       3.6 +/-    0.65  0.050 / 0.100
G22     309.1          61.7                4.4 +/-    1.05       4.9 +/-    1.05  0.030 / 0.040
G23     283.1          15.7                3.7 +/-    9.14       9.0 +/-    9.14  0.030 / 0.040
G25     41.0           10.8                4.9 +/-    1.30      13.3 +/-    1.30  0.110 / 0.330
G26     144.4          33.0                7.3 +/-    1.55      12.0 +/-    1.55  0.120 / 0.370
G31     41.5           66.3                2.5 +/-    0.45       2.7 +/-    0.45  0.040 / 0.090
G32     72.5           28.1                2.7 +/-    0.59       4.8 +/-    0.59  0.050 / 0.090